Invention Grant
- Patent Title: Method for producing cyclic diketone compound
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Application No.: US15533251Application Date: 2015-12-22
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Publication No.: US10087129B2Publication Date: 2018-10-02
- Inventor: Kenji Tanino , Daichi Sakoda , Shu Sakamoto
- Applicant: Kao Corporation
- Applicant Address: JP Tokyo
- Assignee: Kao Corporation
- Current Assignee: Kao Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2014-266684 20141226
- International Application: PCT/JP2015/085772 WO 20151222
- International Announcement: WO2016/104474 WO 20160630
- Main IPC: C07C45/28
- IPC: C07C45/28 ; C07C45/57 ; C07C49/385 ; C07C49/587 ; C07B61/00 ; B01J31/02 ; C01G41/02 ; C01B15/01

Abstract:
Provided is a method for producing a compound represented by general formula (I) by oxidative cleavage of a compound of formula (II), which is a bicyclic tetrasubstituted olefin compound, using hydrogen peroxide. The method for producing a compound represented by general formula (I) includes a step of subjecting a compound represented by general formula (II) to oxidative cleavage using hydrogen peroxide in the presence of an acid catalyst or in the presence of a tungstic acid compound to obtain the compound represented by general formula (I): [In the formulae, formula -A1- (where the front bond denotes a bond that bonds with a carbon atom C1 while the back bond denotes a bond that bonds with a carbon atom C2) is an alkylene group having 2 to 6 carbon atoms that may have been substituted and that may further include an ether bond, an ester bond, a secondary amino group, a thioether group, or these, and formula -A2- (where the front bond denotes a bond that bonds with a carbon atom C1 while the back bond denotes a bond that bonds with a carbon atom C2) is an alkylene group having 4 to 10 carbon atoms that may have been substituted and that may further include an ether bond, an ester bond, a secondary amino group, a thioether group, or these.]
Public/Granted literature
- US20170362153A1 METHOD FOR PRODUCING CYCLIC DIKETONE COMPOUND Public/Granted day:2017-12-21
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